Quality Control Is Set Up on Urea Media

question 9

Multiple Choice

Quality control is set up on urea media.Which two organisms should be used to determine the validity of the media?

• A) C. ulcerans and C. diphtheria (subsp. mitis)
• B) C. diphtheria (subsp. gravis) and C. diphtheria (subsp. intermedius)
• C) C. ulcerans and C. pseudotuberculosis
• D) C. diphtheria (subsp. belfanti) and C. diphtheria (subsp. gravis)

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